. *oi&t is a 'ocatio& i& s*ace It has &o 'e&th+ width+ or heiht . *oi&t is %s%a''y
•
&amed with a ca*ita' 'etter . 'i&e 'i&e is a co''ectio& of *oi&ts oi& o& a&d o& i&fi&ite'y i& )oth directio&s It has &o e&d*oi&ts he& a 'i&e is draw&+ at 'east two *oi&ts o& it ca& )e mared a&d ive& ca*ita' 'etters as &ames .rrows m%st )e draw& to show that the 'i&e oes o&
•
i&defi&ite'y . ray is *art of a 'i&e It has o&e e&d*oi&t a&d co&ti&%es i&fi&ite'y i& o&e directio& $o &ame a ray+ say the &ame of its e&d*oi&t first a&d the& say the &ame
•
of o&e other *oi&t o& the ray $wo rays have the same e&d*oi&t form a& a&'e $his e&d*oi&t is ca''ed the
•
verte I&tersecti& 'i&es have o&e *oi&t i& commo& er*e&dic%'ar 'i&es are s*ecia' i&tersecti& 'i&es that form riht a&'es whe& they
•
i&tersect ara''e' 'i&es are 'i&es that 'ie i& the same *'ace a&d do &ot i&tersect ara''e' 'i&es
•
are a'ways the same dista&ce a*art a&d do &ot share a&y *oi&ts $o re*rese&t re*rese&t a *er*e&dic%'ar 'i&e+ a riht a&'e s%are is draw& i& the cor&er of
•
o&e of the 'i&es
Rationale:
$he st%de&ts have str%'ed with these co&ce*ts $his 'esso& is a review from Mo&day
a&'es+ i&c'%di& e&d*oi&ts a&d vertices &dersta&d that 'i&es i& a *'a&e ca& i&tersect or are *ara''e' er*e&dic%'arity is a
•
s*ecia' case of i&tersectio& Ide&tify *ractica' sit%atio&s that i''%strate *ara''e'+ i&tersecti&+ a&d *er*e&dic%'ar 'i&es
Lesson Openin:
$o )ei& the 'esso&+ I wi'' ive st%de&ts two sticy &otes with either a& eam*'e or a defi&itio& of the fo''owi&: ray+ 'i&e+ *oi&t+ 'i&e seme&t+ *ara''e' 'i&es+ *er*e&dic%'ar 'i&es+ i&tersecti& 'i&es I wi'' have chart *a*er set %* aro%&d the room with the o&e of the headi&s o& each *iece of *a*er $he st%de&ts wi'' )e ased to *'ace their sticy &ote %&der the a**ro*riate cateory with a& e*'a&atio& of why they )e'ieve that item sho%'d o i& that cateory writte& o& the *a*er
!nstructional Strateies/Processes: • •
#ect%re idactic %estio&i&
Products: •
!orti& worsheet
"ssessment:
!t%de&t %&dersta&di& wi'' )e assessed first thro%h the who'e-c'ass sorti& activity $he st%de&ts wi'' a'so )e assessed )ased o& their *erforma&ce o& the attached worsheet
Closure:
$o c'ose the 'esso&+ I wi'' i&trod%ce the fo''owi& day6s 'esso& $he &et 'esso& wi'' ) e a& a**'icatio& of the )asic eometric ideas *rese&ted * rese&ted a&d reviewed i& this 'esso&
orsheet+ if &ot com*'eted co m*'eted i& c'ass #ome$or%: orsheet+
&ifferentiation: 7or st%de&ts who &eed modificatio&s o& their c'asswor/homewor
assi&me&t+ assi&me&ts ca& )e made shorter or certai& *ro)'ems wi'' )e assi&ed $hese modificatio&s are o& a& i&divid%a' &eeds )asis
